Four eastern EU states opposed to fixed migrant quotas across the bloc said Monday they were "absolutely dedicated" to reaching an agreement with western partners on solving Europe's worst migrant crisis since World War II.

"All of us who met here today are absolutely dedicated to reaching a single common tomorrow," Czech Foreign Minister Lubomir Zaoralek said following talks with his Hungarian, Polish and Slovak counterparts in Prague, a day ahead of a key EU on the crisis.  

"We're aware that Europe needs joint collective action to accelerate the solution to the still very painful situation," he added.